https://www.armyrecognition.com/archives/archives-land-defense/land-defense-2018/russia-2s7m-malka-203mm-self-propelled-guns-destroy-targets-at-50km
High-power self-propelled artillery guns 2S7M Malka trained fire at Trekhrechye range in Amur region. They destroyed targets at various distances and for t
self propelled gunsrussiamalkadestroytargets
https://www.warhistoryonline.com/instant-articles/5-british-self-propelled-artillery.html
At the start of the Second World War, most artillery was not independently mobile. It had to be dragged into battle by transport vehicles or horses. But
self propelled gunslionsroarbritishwwii